Pipe-Lok Vales & Fittings Company delivers precision-engineered instrumentation fittings and valves trusted for reliability, safety, and performance in industrial applications with a strong focus on engineering excellence and quality control.
Monel nickel-copper alloys offer excellent resistance to seawater, hydrofluoric acid and reducing environments, combined with good mechanical strength, making them well suited for VCR fittings in marine and specialty chemical service.
A nickel-copper alloy with excellent resistance to seawater, hydrofluoric acid and many reducing chemical environments.
| Element | Weight Percentage (%) |
|---|---|
| Nickel (Ni) | 63.0 min |
| Copper (Cu) | 28.0 - 34.0 |
| Iron (Fe) | 2.50 max |
| Manganese (Mn) | 2.00 max |
| Carbon (C) | 0.30 max |
| Silicon (Si) | 0.50 max |
| Sulfur (S) | 0.024 max |
*Composition limits are as per the applicable ASTM/ASME/UNS specification; actual limits may vary depending on product form.
Monel 400 combines good strength with excellent ductility and toughness across a wide temperature range.
| Property | Typical / Minimum Value |
|---|---|
| Tensile Strength | 550 MPa min |
| 0.2% Yield Strength | 240 MPa min |
| Elongation | 35% min |
| Hardness | 150 HB max |
| Density | Approx. 8.8 g/cm³ |
*Mechanical requirements depend on product form, heat treatment and applicable ASTM/ASME specification. Confirm final values against the material specification used for the VCR fitting component.
An age-hardenable nickel-copper alloy combining the corrosion resistance of Monel 400 with substantially higher mechanical strength.
| Element | Weight Percentage (%) |
|---|---|
| Nickel (Ni) | 63.0 - 70.0 |
| Copper (Cu) | 27.0 - 33.0 |
| Aluminum (Al) | 2.30 - 3.15 |
| Titanium (Ti) | 0.35 - 0.85 |
| Iron (Fe) | 2.00 max |
| Manganese (Mn) | 1.50 max |
| Carbon (C) | 0.25 max |
*Composition limits are as per the applicable ASTM/ASME/UNS specification; actual limits may vary depending on product form.
K500 offers roughly double the strength of Monel 400 through age hardening while retaining excellent corrosion resistance.
| Property | Typical / Minimum Value |
|---|---|
| Tensile Strength | 965 MPa min |
| 0.2% Yield Strength | 585 MPa min |
| Elongation | 20% min |
| Hardness | 30 HRC max |
| Density | Approx. 8.4 g/cm³ |
*Mechanical requirements depend on product form, heat treatment and applicable ASTM/ASME specification. Confirm final values against the material specification used for the VCR fitting component.
High-performance material specifications for our complete VCR Fittings range.
Engineered for demanding fluid and gas-handling systems where leak-tight sealing, corrosion resistance and long service life are essential.
High-temperature, sour-service piping and wellhead systems in upstream operations.
Engine components and high-temperature piping systems demanding exceptional heat resistance.
Handles highly corrosive acids and process chemicals in demanding chemical plants.
Used in flue-gas desulfurization and high-temperature power plant piping systems.
Resists chloride attack in seawater and marine process environments.
Suited for scrubber systems and emission-control equipment exposed to acidic gases.